Assembly of titanium-oxo cations with copper-halide anions to form supersalt-type cluster-based materials.

A series of binary cluster-based crystalline materials consisting of the same cationic polyoxotitanium cluster (PTC) and different anionic copper halide clusters (CuX) have been prepared. Interestingly, these complexes display analogous structure types to inorganic salts and present various light absorption properties.